145503353555 has 24 divisors (see below), whose sum is σ = 203953669920. Its totient is φ = 99359688960.

The previous prime is 145503353543. The next prime is 145503353557. The reversal of 145503353555 is 555353305541.

It is not a de Polignac number, because 145503353555 - 2⁸ = 145503353299 is a prime.

It is a super-2 number, since 2×145503353555² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145503353557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173095 + ... + 1291184.

It is an arithmetic number, because the mean of its divisors is an integer number (8498069580).

Almost surely, 2^145503353555 is an apocalyptic number.

145503353555 is a deficient number, since it is larger than the sum of its proper divisors (58450316365).

145503353555 is a wasteful number, since it uses less digits than its factorization.

145503353555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464539 (or 2464532 counting only the distinct ones).

The product of its (nonzero) digits is 1687500, while the sum is 44.

The spelling of 145503353555 in words is "one hundred forty-five billion, five hundred three million, three hundred fifty-three thousand, five hundred fifty-five".